AB062. Clinical analysis of retroperitoneal robotic-assisted laparoscopic partial nephrectomy in management of T1b renal carcinoma

Background: To summarize our clinical experience and review our technique of retroperitoneal robotic-assisted laparoscopic partial nephrectomy (RALPN) in management of T1b renal carcinoma. Assess the clinical efficacy and safety of retroperitoneal RALPN.

Methods: Retrospective review of 52 T1b renal carcinoma patients underwent retroperitoneal RALPN form January 2014 to October 2016. The patients included 30 males and 22 females, with an average age of (55.2±9.5) years old. There were 32 tumors in the left and 20 in the right. The mean lesion diameter was 4.5±0.7 cm.

Results: All cases were performed successfully. The operation was completed in a mean of 80.5±12.3 min, the mean warm ischemia time was 17.4±5.1 min, the mean blood loss was 38.2±7.4 mL and the mean extubation time was 2.1±0.7 d. Postoperative pathology reported malignant tumor in all cases, including renal clear cell carcinoma in 45 cases, papillary renal cell carcinoma in 5 cases and chromophobe cell carcinoma in 2 cases. The surgical margin of all cases were negative.

Conclusions: Retroperitoneal RALPN is an effective, safe and minimally invasive surgical management for T1b renal carcinoma.

Keywords: Retroperitoneal approach; renal carcinoma; partial nephrectomy; robotics